Collybia crassipes (Bull.) P.Kumm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Fungi phylum Basidiomycota class Agaricomycetes order Agaricales family Omphalotaceae genus Gymnopus species Gymnopus fusipes Name Homonyms Collybia crassipes (Schaeff.) Ricken Collybia crassipes (Bull.) P.Kumm.